New PSU makes high pitched noise in games

pjapen · 10-23-2008, 08:26 AM

Im stuck!

I have a Zalman 750 watt psu, ZM750-HP, bought 2 months ago 2008-08-10.
and the guys i bought it from claims there is no problem with it, i even had to pay for the post and packade when i sent it to repair.

Now to my problem, the psu works like its suposed to exept when i play high end graphic games like eve online, nhl 2008 and tiger woods 2008. otherwise is totaly fine, but as i play this games a sound starts to emitt from my psu and as a pan around in the game the sound changes frequency, and its extreamly annoying.

I have sent in the psu to my retailer and got it back without them telling me that is no problem with it. what shall i do? ( yes they got this exakt info but i think they might have a testing rig and not accualy mounted to a graphic card.)

btw: my machine is: intel core2 quad q9550 2.83 GHz,
4 gig corsair dominator,
Asus p5q premium motherboard
Zalman 750 watt cpu, ZM750-HP
Geforce XFX GTX 280 1 GB

**magnethead** · 10-23-2008, 08:42 AM

sure it's not the fan?

pjapen · 10-23-2008, 02:00 PM

well if it was the fan they would have found that it had a problem but even if i stop the fan the sound remains, so must be the transformater but how it makes the sound is a mystery to me.

My only solution is that is payday tomorrow as im getting really annoyed by the sound and i guess the only way out is a new psu.

I have a cheap 750 w psu for sale here tomorrw :)

10-23-2008, 08:26 AM	#1 (permalink)
pjapen Registered User Join Date: Oct 2008 Posts: 3 OS: win xp sp2	New PSU makes high pitched noise in games Im stuck! I have a Zalman 750 watt psu, ZM750-HP, bought 2 months ago 2008-08-10. and the guys i bought it from claims there is no problem with it, i even had to pay for the post and packade when i sent it to repair. Now to my problem, the psu works like its suposed to exept when i play high end graphic games like eve online, nhl 2008 and tiger woods 2008. otherwise is totaly fine, but as i play this games a sound starts to emitt from my psu and as a pan around in the game the sound changes frequency, and its extreamly annoying. I have sent in the psu to my retailer and got it back without them telling me that is no problem with it. what shall i do? ( yes they got this exakt info but i think they might have a testing rig and not accualy mounted to a graphic card.) btw: my machine is: intel core2 quad q9550 2.83 GHz, 4 gig corsair dominator, Asus p5q premium motherboard Zalman 750 watt cpu, ZM750-HP Geforce XFX GTX 280 1 GB

10-23-2008, 08:42 AM	#2 (permalink)
magnethead Registered User Join Date: Mar 2006 Location: Texas, USA Posts: 3,570 OS: Vista ultimate 32bit My System Blog Entries: 3	Re: New PSU makes high pitched noise in games sure it's not the fan? __________________ For proper support: what are you running? graphics, cpu, m/board, ram, PSU brand wattage PCI-E requires 26 amps at 12 volts. That's a 650W PSU. Power Supply Info and Selection . Info on thermal compounds & application . TEST PSU USING MULTI-METER . Bench Testing Your System

10-23-2008, 02:00 PM	#3 (permalink)
pjapen Registered User Join Date: Oct 2008 Posts: 3 OS: win xp sp2	Re: New PSU makes high pitched noise in games well if it was the fan they would have found that it had a problem but even if i stop the fan the sound remains, so must be the transformater but how it makes the sound is a mystery to me. My only solution is that is payday tomorrow as im getting really annoyed by the sound and i guess the only way out is a new psu. I have a cheap 750 w psu for sale here tomorrw :)